Thermostat



FIG. 1 is a perspective view of a thermostat showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right-side elevational view thereof;

FIG. 7 is a left-side elevational view thereof;

FIG. 8 is a perspective view showing features behind the front panel; and,

FIG. 9 is a perspective view of a thermostat showing a first embodiment of my new design.

The broken lines in FIGS. 8 and 9 are illustrative of environmental structure only and form no part of the claimed design. 

The ornamental design for a thermostat, as shown and described. 